gdb/ppc-tdep.h

   1 /* Target-dependent code for GDB, the GNU debugger.
   2    Copyright 2000, 2001, 2002, 2003
   3    Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef PPC_TDEP_H
  23 #define PPC_TDEP_H
  24
  25 struct gdbarch;
  26 struct frame_info;
  27 struct value;
  28 struct regcache;
  29 struct type;
  30
  31 /* From ppc-linux-tdep.c... */
  32 CORE_ADDR ppc_linux_frame_saved_pc (struct frame_info *fi);
  33 void ppc_linux_init_extra_frame_info (int fromleaf, struct frame_info *);
  34 int ppc_linux_frameless_function_invocation (struct frame_info *);
  35 void ppc_linux_frame_init_saved_regs (struct frame_info *);
  36 CORE_ADDR ppc_linux_frame_chain (struct frame_info *);
  37 int ppc_sysv_abi_use_struct_convention (int, struct type *);
  38 void ppc_sysv_abi_store_return_value (struct type *type,
  39                                       struct regcache *regcache,
  40                                       const void *valbuf);
  41 void ppc_sysv_abi_extract_return_value (struct type *type,
  42                                         struct regcache *regcache,
  43                                         void *valbuf);
  44 void ppc_sysv_abi_broken_store_return_value (struct type *type,
  45                                              struct regcache *regcache,
  46                                              const void *valbuf);
  47 void ppc_sysv_abi_broken_extract_return_value (struct type *type,
  48                                                struct regcache *regcache,
  49                                                void *valbuf);
  50 CORE_ADDR ppc_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
  51                                         CORE_ADDR func_addr,
  52                                         struct regcache *regcache,
  53                                         CORE_ADDR bp_addr, int nargs,
  54                                         struct value **args, CORE_ADDR sp,
  55                                         int struct_return,
  56                                         CORE_ADDR struct_addr);
  57 CORE_ADDR ppc64_sysv_abi_push_dummy_call (struct gdbarch *gdbarch,
  58                                           CORE_ADDR func_addr,
  59                                           struct regcache *regcache,
  60                                           CORE_ADDR bp_addr, int nargs,
  61                                           struct value **args, CORE_ADDR sp,
  62                                           int struct_return,
  63                                           CORE_ADDR struct_addr);
  64 int ppc_linux_memory_remove_breakpoint (CORE_ADDR addr, char *contents_cache);
  65 struct link_map_offsets *ppc_linux_svr4_fetch_link_map_offsets (void);
  66 void ppc_linux_supply_gregset (char *buf);
  67 void ppc_linux_supply_fpregset (char *buf);
  68
  69 int ppc64_sysv_abi_use_struct_convention (int gcc_p, struct type *value_type);
  70 void ppc64_sysv_abi_extract_return_value (struct type *valtype,
  71                                           struct regcache *regbuf,
  72                                           void *valbuf);
  73 void ppc64_sysv_abi_store_return_value (struct type *valtype,
  74                                         struct regcache *regbuf,
  75                                         const void *valbuf);
  76
  77
  78 /* From rs6000-tdep.c... */
  79 CORE_ADDR rs6000_frame_saved_pc (struct frame_info *fi);
  80 void rs6000_init_extra_frame_info (int fromleaf, struct frame_info *);
  81 int rs6000_frameless_function_invocation (struct frame_info *);
  82 void rs6000_frame_init_saved_regs (struct frame_info *);
  83 CORE_ADDR rs6000_frame_chain (struct frame_info *);
  84 int altivec_register_p (int regno);
  85
  86
  87 /* Return non-zero when the architecture has an FPU (or at least when
  88    the ABI is using the FPU).  */
  89 int ppc_floating_point_unit_p (struct gdbarch *gdbarch);
  90
  91 /* Private data that this module attaches to struct gdbarch. */
  92
  93 struct gdbarch_tdep
  94   {
  95     int wordsize;              /* size in bytes of fixed-point word */
  96     int *regoff;               /* byte offsets in register arrays */
  97     const struct reg *regs;    /* from current variant */
  98     int ppc_gp0_regnum;         /* GPR register 0 */
  99     int ppc_gplast_regnum;      /* GPR register 31 */
 100     int ppc_toc_regnum;         /* TOC register */
 101     int ppc_ps_regnum;          /* Processor (or machine) status (%msr) */
 102     int ppc_cr_regnum;          /* Condition register */
 103     int ppc_lr_regnum;          /* Link register */
 104     int ppc_ctr_regnum;         /* Count register */
 105     int ppc_xer_regnum;         /* Integer exception register */
 106     int ppc_fpscr_regnum;       /* Floating point status and condition
 107                                    register */
 108     int ppc_mq_regnum;          /* Multiply/Divide extension register */
 109     int ppc_vr0_regnum;         /* First AltiVec register */
 110     int ppc_vrsave_regnum;      /* Last AltiVec register */
 111     int ppc_ev0_regnum;         /* First ev register */
 112     int ppc_ev31_regnum;        /* Last ev register */
 113     int lr_frame_offset;        /* Offset to ABI specific location where
 114                                    link register is saved.  */
 115 };
 116
 117 #endif